Acer AL922 AL922 Monitor Service Guide
Acer AL922 Manual
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- Acer AL922 | AL922 Monitor Service Guide - Page 1
AL 922 TFT LCD MONITOR CONTENTS 1. INTRODUCTION ...3 1.1 Scope...3 1.2 Description...3 2. ELECTRICAL REQUIREMENTS ...4 2.1 Standard Test Conditions...4 2.2 Lcd Monitor General Specification...4 2.3 Lcd Panel Specification ...5 2.4 Input Signals ...11 2.5 Controls ...15 2.6 White Color Temperature - Acer AL922 | AL922 Monitor Service Guide - Page 2
9.7 Burst Duration ...41 9.8 Burst Period ...41 9.9 Climatic Conditions ...41 9.10 Test Procedure ...41 10.Power Line Surge Test (IEC 61000-4-5 Surge 43 10.1 Climatic Condition...43 10.2 Test Conditions: ...43 11.ENVIROMENT REQUIREMENT ...44 11.1 Operating ...44 11.2 Storage or - Acer AL922 | AL922 Monitor Service Guide - Page 3
1. INTRODUCTION 1.1 Scope This specification defines the requirements for the 19" MICRO-PROCESSOR based Multimode supported high resolution color LCD monitor, This monitor can be directly connected to general 15 pin D-sub VGA connector and DVI-D digital connector, eliminates the requirement of - Acer AL922 | AL922 Monitor Service Guide - Page 4
9u'/2) - 12v' + 9] y = (3v')/[(9u'/2) - 12v' + 9] nits = cd/(m2) = Ft-L x 3.426 lux = foot-candle x 10.76 2.2 LCD monitor General specification Panel Type : 19 " active matrix color TFT LCD 1). FUJITSU FLC48SXC8V Display size : 376.32mm(H) x 301.056mm(V) Display mode : VGA 720 X 400 (70 Hz) VGA - Acer AL922 | AL922 Monitor Service Guide - Page 5
56Hz ----75Hz Plug & play : Support VESA DDC2B functions Power Input voltage : Total output power : Single phase, 50/60HZ, 100VAC to 240VAC ±10% 60 Watt max. 2.3 LCD Panel Specification 2.3.1 LCD Panel Model (FUJITSU FLC48SXC8V) • Display Type • Resolution • Display Dot • Display Area - Acer AL922 | AL922 Monitor Service Guide - Page 6
rms.( typ). 4 Lamp • Weight 3200g . • Optical Specifications The following items are measured under stable conditions. The optical methods shown in Note(4). Measuring equipment : TOPCON BM-5A, BM-7, PHOTO RESEARCH PR650 (Inverter Freq. : 54kHz) *Ta =25 ± 2°C, VDD=5V, fv=60 Hz, fDCLK= - Acer AL922 | AL922 Monitor Service Guide - Page 7
Note 2) Definition of Contrast Ratio (CR): Ratio of gray max(Gmax),gray min(Gmin) at the center point of panel. Luminance with all pixels white (Gmax) CR Luminance with all pixels black (Gmin) Note 3) Definition of Response time: Sum of TR , TF 7 - Acer AL922 | AL922 Monitor Service Guide - Page 8
Note 4) After stabilizing and leaving the panel alone at a given temperature for 30 min, the measurement should be executed .Measurement should be executed n a stable, windless ,and dark room.30 min after lighting the back-light. This should be measured in the center of screen. Dual lamp current :13 - Acer AL922 | AL922 Monitor Service Guide - Page 9
Notes 5) Definition of Luminance of White : measure the luminance of white at center point. Notes 6)Definition of 9 points brightness uniformity (Measuring points: Refer to the Note 5) Bmin BUNI=100 Bmax Bmax: Maximum brightness Bmin: Minimum brightness Notes 7) Definition of Flicker level Flicker - Acer AL922 | AL922 Monitor Service Guide - Page 10
Note 8) Definition of Crosstalk (Refer to the VESA STD) The calculation for shadowing is made from the 2 luminance measurements Gbkg and Lsh, as follows: Lmax -Lmin CT x100 % Lmin Where Lmax is the larger value of Gbkg or Lsh , and Lmin is the smaller of the two. ♦ To determine background and - Acer AL922 | AL922 Monitor Service Guide - Page 11
same as LCD panel supported timing the display optimization will not be assured. • Horizontal Frequency 24KHz --80KHz(analog), 31.5- 80KHz(digital) • Vertical Frequency 56Hz ---------75Hz DISPLAY MODES MONITOR MODE NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 SCREEN RESOLUTION - Acer AL922 | AL922 Monitor Service Guide - Page 12
48 248 108 3 1 38 144 16 248 135 3 1 38 If the input timing is not a supported timing listed above but within the supported frequency range (Horizontal: 80KHz,Vertical: 75Hz), this monitor will select a closest mode instead. But the display quality may not be optimized. If the input - Acer AL922 | AL922 Monitor Service Guide - Page 13
2.4.4 85Hz refresh rate Support Monitor should display 85Hz refresh rate mode as emergency mode. Monitor should display "Out of Range" warning menu at this mode. 2.4.5 Video input Connector Analog Video input Connector: 15pins mini D-Sub Table 2.4.5. Pin assignment for D-sub - Acer AL922 | AL922 Monitor Service Guide - Page 14
TX3) 19 Shield (TX0 / TX5) 4 NC 12 NC 20 NC 5 NC 13 NC 21 NC 6 DDC-Serial Clock 14 +5V power *) 22 Shield (TXC) 7 DDC-Serial Data 15 Ground (+5V) 23 TXC+ 8 No Connect 16 Hot plug detect 24 TXC- *) In case, the power of the PC unit is switched off and the power of the monitor - Acer AL922 | AL922 Monitor Service Guide - Page 15
2.5 CONTROLS 2.5.1 Control panel (monitor front panel) 1. Power LED, will be green when monitor is on; be amber when in power saving mode. 2. Adjust decrease. 3. Adjust increase. 4. Function select counter-clockwise. 5. Function select clockwise. 6. Power ON/OFF switch, push to ON and push to OFF. - Acer AL922 | AL922 Monitor Service Guide - Page 16
User: User R: User G: User B: 7500: 6500: 9300: • Exit: Color temperature for standard 9300,6500, 7500 or user defined. Red signal gain by user defined. Green signal gain by user defined. Blue signal gain by user : Current mode resolution. Current mode vertical frequency±1Hz. Firmware revision. 16 - Acer AL922 | AL922 Monitor Service Guide - Page 17
by the host CPU, AL922(AM999) show a black screen about 3 seconds. If no further signal, then it shows "No Signal" and enter power saving mode. 2.6 White Color Temperature White color temperature is 4 preset as 9300, 7500,6500 and User, Default value of user color should be user which is maximum - Acer AL922 | AL922 Monitor Service Guide - Page 18
input Voltage Range The monitor shall operate within specification over the range of 90 to 265 VAC power supply. 2.7.2 Input Frequency Range Input power frequency range shall be from 47.5 to 63 Hz over the specified input voltage range. 2.7.3 Quick specification review • Input current 1.5A (max - Acer AL922 | AL922 Monitor Service Guide - Page 19
specification 2.9.1 General Description: Output power 500m Vrms 1KHz 500m Vrms 1KHz - 500m Vrms 1KHz - - Spec. Comment Typ. Max. 5 - 500 800 - 6 d B 2.9.3 Speakers Maximum power Impedance Frequency response range Total harmonic distortion 2.9.4 Headphone output Output power : 2 W - Acer AL922 | AL922 Monitor Service Guide - Page 20
construct a high display quality LCD monitor. 3.2 Features • On board embedded micro-processor to detect display timings and control user functions. • Using Genesis gm5120 design to generate optimum LCD timings. 2 • Using E PROM to memorize every adjusted parameter. • support up to 22 display modes - Acer AL922 | AL922 Monitor Service Guide - Page 21
3.3 BLOCK DIAGRAM 21 - Acer AL922 | AL922 Monitor Service Guide - Page 22
Ground Ground Ground 5VCC PCDETECT NC SDA HS VS SCL Comment Red Video Input. Green Video Input. Blue Video Input. Ground. Ground. Ground. Ground DDC Power Input. PCDETECT Input. NC DDC 2B Horizontal Sync Input. Vertical Sync Input. DDC 2B 22 - Acer AL922 | AL922 Monitor Service Guide - Page 23
11 13 14 16 17 19 20 22 23 25 26 28 29 03,06,09, 12 15, 18, 21, 24 27, 30, 34, 35 39,40 Symbol VDD TXE0TXE0+ TXE1TXE1+ TXE2TXE2+ TXECLKTXECLK+ TXE3TXE3+ TXO0TXO0+ TXO1TXO1+ TXO2TXO2+ TXOCLKTXOCLK+ TXO3TXO3+ GND GND GND GND Function 5V POWER SUPPLY LVDS EVEN OUTPUT DATA PAIRS - Acer AL922 | AL922 Monitor Service Guide - Page 24
NC LED-Y LED-G GND KEY-POWER KEY-DOWN KEY-R KEY-L KEY-UP GND Comment NC Power saving mode Monitor is ON GND Power ON/OFF key Function select TX4) 11 Shield (TX1 / TX3) 19 Shield (TX0 / TX5) 4 NC 12 NC 20 NC 5 NC 13 NC 21 NC 6 DDC-Serial Clock 14 -5V Power *) 22 Shield (TXC) 7 DDC-Serial - Acer AL922 | AL922 Monitor Service Guide - Page 25
The VT-901 is designed to offer a user interfaced control panel which passes and receives signals to Signal VOL GND LIN1 RIN1 RIN2 Maker E&T E&T ACER ACER SC Number of pins 10 11 2 2 9 Comment NC Power saving mode Monitor is ON GND Power ON/OFF key Function select counter-clockwise key Adjust - Acer AL922 | AL922 Monitor Service Guide - Page 26
11 LOUT Audio Volume Adjust Line OUTL EAR Phone Out R EAR Phone Out L Speaker Out R Speaker Out L 4.5 Switch definition Location Definition S5 Power ON/OFF S1 Function select by clockwise direction S4 Function select by counter-clockwise direction S3 Adjust up S2 Adjust down 4.6 LED - Acer AL922 | AL922 Monitor Service Guide - Page 27
BOARD 5.1 Description The Inverter board is designed for lighting up the back-lights of LCD module. 5.2 Electrical characteristics 5.2.1 FOR Fujitsu PANEL FLC48SXC8V MIN. TYP. INPUT VOLTAGE 11.4V 12.0V INPUT CURRENT -------- 2A Normal BACKLIGHT VOLTAGE LAMP CURRENT DRIVING FREQUENCY - Acer AL922 | AL922 Monitor Service Guide - Page 28
5.3 Connector locations 5.3.1 Connector type J2 J3 J1 J4 Location JN2, JN3, JN4, JN5 JN1 Type SM02 (8.0)B-BHS 85205-1200 Maker ST E&T J5 CM999-E04 Number of pins 2 12 5.3.2 Connector pin assignment 5.3.2.1 J2,J3,J4,J5 Pin NO. Signal Comment 1 HV 3 LV High voltage for lamp Low voltage ( - Acer AL922 | AL922 Monitor Service Guide - Page 29
6. DC/DC POWER and Audio CKT VM-902 6.1 Input: +12V/5A from AC adapter 6.2 Output: ITEM Output Voltage Max Load. Min Load Tolerance Ripple & Noise(max) VCC +5V 2.1A 0.1A ±5 % 200mVpp 6.3 Efficiency: 80 % min at Maximum Load. 6.4 Connector Locations 6.4.1 - Acer AL922 | AL922 Monitor Service Guide - Page 30
6.4.3.1 J802 FOR I/F CKT Pin No Pin 1,2,3,4 Pin 5,6,10,11,12 Signal +12V GND Pin 8 Pin 7 +5V ON/OFF Pin 9 BRIGHT Comment From adapter +12V power GND Supply for I/F CKT ON/OFF Control ON>3.0V OFF - Acer AL922 | AL922 Monitor Service Guide - Page 31
7. TROUBLESHOOTING 7.1 Main Procedure 31 - Acer AL922 | AL922 Monitor Service Guide - Page 32
7.1.1 Power Circuit Troubleshooting 32 - Acer AL922 | AL922 Monitor Service Guide - Page 33
7.1.2 Backlights Troubleshooting 33 - Acer AL922 | AL922 Monitor Service Guide - Page 34
7.1.3 Performance Troubleshooting 34 - Acer AL922 | AL922 Monitor Service Guide - Page 35
7.1.4 Function Troubleshooting 35 - Acer AL922 | AL922 Monitor Service Guide - Page 36
it is in front of the user (i.e., front-to back, side- inches / second velocity change. There shall be one shock in each direction in each axis, for a total of 6 shock inputs. 8.2 Package Drop Specification Listed below are standards of drop heights for monitor product Product Weight height Specs - Acer AL922 | AL922 Monitor Service Guide - Page 37
Size and Weight Dimension size 433 (W) x 447 (H) x 235 (D) Net Weight 6.5Kg Gross Weight 9 Kg 8.4 Gap Spec. 8.4.1 The step between front bezel and back cover shall be within specification. Back Cover & Bezel Gap 0.8 mm ≤ A ≤ 1.2 mm Back Cover & Bezel Alignment 0 mm ≤ D ≤ 0.8 mm Back Cover - Acer AL922 | AL922 Monitor Service Guide - Page 38
Back Cover & Cable Cover Gap 0.8 mm ≤ B ≤ 1.2 mm Base Cover & Neck Cover Gap 0.8 mm ≤ C ≤ 1.2 mm 38 - Acer AL922 | AL922 Monitor Service Guide - Page 39
The angle between front bezel and LCD unit in bottom side should not large than 1.0mm. The distance of the LCD display unit from left side to right should not large than ∣E - F∣ - Acer AL922 | AL922 Monitor Service Guide - Page 40
Front Bezel PC + ABS 94 - V0 BACK COVER PC + ABS 94 - V0 The others ABS 94 HB 8.8 GAP Spec. Gap between panel with bezel is 0 mm < gap < 1.5 mm 9. Power Line Transient Test (IEC 61000-4-4 Fast Transients/Burst) TEST CONDITIONS & PROCEDURE: (Follow IEC 61000-4-4) Test Condition : The condition - Acer AL922 | AL922 Monitor Service Guide - Page 41
Humidity: 45% to 75% - Atmospheric Pressure: 86 kPa to 106 kPa 9.10 Test Procedure: The monitor Display set high-resolution mode, AC input use AC 240V. Note : 9.10.1 IEC 61000-4-4 defines that power supply, I/O line, and control line all shall be performed the transient test, but the I/O line - Acer AL922 | AL922 Monitor Service Guide - Page 42
WAVESHAPE 42 - Acer AL922 | AL922 Monitor Service Guide - Page 43
applied between lines and between lines and ground. 10.4 If not otherwise specified, the surge to power supply circuits shall be applied synchronized to the voltage phase at the zero crossing and the peak or software allowed. 10.7 Display set high-resolution mode, AC input use AC 240V. 43 - Acer AL922 | AL922 Monitor Service Guide - Page 44
11. ENVIROMENT REQUIREMENT 11.1 Operating Temperature Relative Humidity Altitude 5°C ~ 40°C 20% to 80% Sea level to 8000ft 11.2 Storage or Shipment Temperature Relative Humidity Altitude -20°C ~ +60°C 5% to 85% Sea level to 40,000ft 11.2.1 TEST PROCEDURE: • Put in temperature chamber under 60 - Acer AL922 | AL922 Monitor Service Guide - Page 45
-4 VCCI (option) BSMI (option) User handbook for evaluation visual display units. power saving according to NUTEK Spec. 803299/94/96, EPA Energy star. Requirements for Environmental Labeling of Personal Computers Power Frequency Magnetic Field IEC 61000-4-11 Voltage DIP/Interruption Specification - Acer AL922 | AL922 Monitor Service Guide - Page 46
function or performance which is selfrecoverable Class C : Normal performance within the specification limits Discharge times: 20 times for each discharge point, time interval agreement between manufacturer and user. The test documentation shall include the test conditions and the test results. - Acer AL922 | AL922 Monitor Service Guide - Page 47
: 15°C to 35°C Relative humidity : 30% to 60% 13. QUALITY AND RELIABILITY 13.1 Quality Assurance Unless otherwise specified in this specification or the applicable purchase order, the supplier shall be responsible for maintaining a statistical process program or performing inspections that are - Acer AL922 | AL922 Monitor Service Guide - Page 48
APPENDIX A: PARTS LISTS 48 - Acer AL922 | AL922 Monitor Service Guide - Page 49
A. FRU Board A-1 PCBA Inverter board A-2 454A7830001 -PCBA Key Board (VT-901) A-3 455A7830001 -PCBA Audio& D/D Board (VM-902) 49 - Acer AL922 | AL922 Monitor Service Guide - Page 50
A-4 461A7830011-Firmware Ctrl Board (VL-901) 50 - Acer AL922 | AL922 Monitor Service Guide - Page 51
DESCRIPTION ACER PART Compal PART Common/ NO. NO. Unique TAT 2 months Rolling Forecast COMMENT SUGGEST FOR MINIMAL LOCAL REFERNCE/MB Unit Price Action ORDER DEFECT PARTS RETURN/SCRAP/ BUY INDIVIDUAL LOCATION (US) Code Q'TY VENDOR S/N COLLECT (YES/NO) PACK(YES/NO) PCBA INVERTER&POWER - Acer AL922 | AL922 Monitor Service Guide - Page 52
Replaceable Unit) which are used for first tier system service use and in LOW stock level and RTV items. : "MFG" is responsible for 1st year support after product phase-out. CSD only provides FRU for high dollar valued item to be returned for repair and low dollar valued item to be scrapped locally. - Acer AL922 | AL922 Monitor Service Guide - Page 53
APPENDIX B: DISPLAY UNIT ASSEMBLY 53 - Acer AL922 | AL922 Monitor Service Guide - Page 54
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\\M-id\ART1\ MANUAL\service\AB QUANTITY REQUIRED DWG.NO. LAM999 REV. 0A C NO. PART NO. DESCRIPTION SPECIFICATION F1 001 REMARKS # LAM999F1001 LAM999F ABO-USA UR+TCO99 110V MSV16 19"FUJITSU 1 DC190020440 CB ASY 2 GA050000400 POWER CORD SET 3 PK10V000000 AC ADAP 4 DC190019270 CB - Acer AL922 | AL922 Monitor Service Guide - Page 56
QUANTITY REQUIRED DWG.NO. X66AI8 REV. 0A C NO. PART NO. DESCRIPTION SPECIFICATION 30 001 REMARKS # X66AI830001 MEC PACKING ABO LAM999F TCO99 1 FJCM9917000 EPS FOAM-L 2 FJCM9918000 EPS FOAM-R A CM9917 CM9918 End of Report 1 - - - - 201 1 - - - - 202 56 - Acer AL922 | AL922 Monitor Service Guide - Page 57
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- Acer AL922 | AL922 Monitor Service Guide - Page 59
\\M-id\ART1\ \\M-id\ART1\ MANUAL\service\ABMANUAL\service\AB QUANTITY REQUIRED DWG.NO. 582903 REV. 0A C NO. PART NO. DESCRIPTION SPECIFICATION 30 001 REMARKS # 58290330001 DIS ABO LAM999F TCO99 19"FUJ 1280X1024 1 AC600022700 LCD MODU FLC48SXC8V 19" FUJITSU 1 - - - - 301 2 - Acer AL922 | AL922 Monitor Service Guide - Page 60
0A C NO. PART NO. DESCRIPTION SPECIFICATION 30 001 REMARKS # X66AI930001 MEC PARTS ABO SCREW SPECIAL 17 MAB10003400 SCREW 18 MAB20009200 SCREW 19 MAB20076200 TAPING SCREW 20 MAB80007400 SCREW 21 DC150V00000 CORE 22 MAB7T002419 SCREW CM9915 (FOR POWER SW) 1 - - - - 001 CM9922 - Acer AL922 | AL922 Monitor Service Guide - Page 61
APPENDIX C: P.C.B.A ASSEMBLY 61 - Acer AL922 | AL922 Monitor Service Guide - Page 62
A 4 3 2 B C D E 4 J1 AudioBoard 11 10 connector 9 8 7 6 5 4 3 2 1 LOUT ROUT L_EAR R_EAR LIN_2 RIN_2 RIN_1 LIN_1 MUTE J2 4 2 7 3 LI1 LI2 RI1 RI2 SCJ-0348-C LO NC RO GND 5 6 8 1 J3 1 2 ACES_87502_0200 STRAIGHT/2.5 J4 1 2 ACES_87502_0200 STRAIGHT/2.5 E&T_96113_1113 2 VR 3 - Acer AL922 | AL922 Monitor Service Guide - Page 63
\\M-id\ART1\ MANUAL\service\AB QUANTITY REQUIRED DWG.NO. 454A79 REV. 1A C NO. PART NO. DESCRIPTION SPECIFICATION 30 001 REMARKS # 454A7930001 PCBA KEY/B VT-901 LAM999F 1A 1 BC5G2093000 LED 2 CF150021100 VR RES 3 DA1M999V110 PCB 4 DC030040000 WAFER CONN 5 DC03E000500 WAFER - Acer AL922 | AL922 Monitor Service Guide - Page 64
OB[0..7] DVS DHS DEN DCLK 2 LVDS_EN LCDON LVDS_EN 1 D C AUDIO_ON LED_Y LED_G KEY DOWN KEY RIGHT KEY UP KEY LEFT KEY ONOFF PPWR 5. Display B Power PBIAS BRI_ADJ 7. Power A Title CTRL/B VL-901,VGA INPUT Size Document Number B 401A78 Rev 1B Date: Thursday, July 04, 2002 Sheet 2 of 7 2 1 - Acer AL922 | AL922 Monitor Service Guide - Page 65
+ 5V GND HP 9 10 11 12 13 14 15 16 L8 STC222BDVI_5V STS2125 R1 10K HOT_PLUG PCDETECTD RX0RX0+ GND RX5RX5+ GND RXC+ RXC- 17 18 19 20 21 22 23 24 RED GRN BLU HS GND C1 C2 C3 C4 C5 Shell DDC_5V DVI-D GND C1 R2 R3 0.1uF R4 47K - Acer AL922 | AL922 Monitor Service Guide - Page 66
24 22 OE CE DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 21 20 19 18 17 15 14 13 NC 1 VCC GND 32 16 RMDATA7 RMDATA6 RMDATA5 ROM_ADDR15 ROM_ADDR14 ROM_ADDR13 ROM_ADDR12 ROM_ADDR11 ROM_ADDR10 ROM_ADDR9 ROM_ADDR8 16 17 18 19 22 23 24 25 ROM_ADDR7 ROM_ADDR6 ROM_ADDR5 ROM_ADDR4 ROM_ADDR3 ROM_ADDR2 - Acer AL922 | AL922 Monitor Service Guide - Page 67
5 4 3 2 1 3.3V_DVDD D D SHT-4 SHT-4 SHT-4 SHT-4 KEY UP KEY LEFT KEY ONOFF KEY RIGHT KEY DOWN R50 R51 R52 R53 R54 470 470 470 470 470 R72 100 R73 100 R71 100 R74 100 R75 100 C53 0.1uF C54 0.1uF C55 0.1uF C56 0.1uF C57 0.1uF GND C C +5V 3.3V_DVDD SHT-4 AUDIO_ON R55 NC/ - Acer AL922 | AL922 Monitor Service Guide - Page 68
6 7 11 12 14 TXIN10 TXIN11 TXIN7 TXIN8 TXIN9 TXIN12 TXIN13 TXIN14 16 18 15 19 20 22 23 24 TXIN16 TXIN17 TXIN15 TXIN18 TXIN19 TXIN20 TXIN21 TXIN22 25 27 28 30 PANEL_VDD PANEL_VDD CN4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 - Acer AL922 | AL922 Monitor Service Guide - Page 69
+ 100uF C98 0.1uF GND GND 1 ADJ U13 APL1117-3.3V 3 VI VO 2 VO 4 C99 0.1uF + C100 100uF GND GND GND LVDS_3.3V 2 E 4 3 2 1 1 Title CTRL/B VL-901,POWER Size Document Number C 401A78 Rev 1B Date: Thursday, July 04, 2002 Sheet 7 of 7 A B C D E - Acer AL922 | AL922 Monitor Service Guide - Page 70
\\M-id\ART1\ MANUAL\service\AB QUANTITY REQUIRED DWG.NO. 461A78 REV. 0C C NO. PART NO. DESCRIPTION SPECIFICATION 30 30 88 001 011 002 REMARKS # 461A7830001 FIRMWARE CTRL/B VL-901 LCM999F COMPAL # 461A7830011 FIRMWARE CTRL/B VL-901 LAM999F ABO # 461A7888002 FIRMWARE CTRL/B - Acer AL922 | AL922 Monitor Service Guide - Page 71
.NO. 451A78 REV. 1D C NO. PART NO. DESCRIPTION SPECIFICATION 30 30 001 011 REMARKS # 431A7830001 SMT CTRL/B VL-901 0603 S9 14 14 - - - R1 R24 R25 R28 R31 R36 R37 R38 R39 R48 R57 R60 R66 R67 19 SD0134700T1 CHIP RES. 1/16W 470 +-5% 0603 S9 5 5 - - - R50 R51 R52 R53 R54 20 - Acer AL922 | AL922 Monitor Service Guide - Page 72
QUANTITY REQUIRED DWG.NO. 451A78 REV. 1D C NO. PART NO. DESCRIPTION SPECIFICATION 30 30 001 011 REMARKS C2 C20 C21 C22 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 - Acer AL922 | AL922 Monitor Service Guide - Page 73
0.047uF 0.047uF 1 2 L1 NC/1mH C6 0.01uF A A FOR AM999 ONLY Title SCHEMATIC, AUDIO&D/D BD. VM-902 Size Document Number B 405A78 Rev 0B Date: Friday, July 19, 2002 Sheet 2 of 3 5 4 3 2 1 - Acer AL922 | AL922 Monitor Service Guide - Page 74
R804 470K R805 470K C803 470U/16V LOW-ESR 2 2 1 1 Title SCHEMATIC, AUDIO&D/D BD. VM-902 Size Document Number Rev A3 405A78 0B Date: Friday, July 19, 2002 Sheet 3 of 3 A B C D E - Acer AL922 | AL922 Monitor Service Guide - Page 75
id\ART1\ MANUAL\service\AB QUANTITY REQUIRED DWG.NO. 455A78 REV. 0C C NO. PART NO. DESCRIPTION SPECIFICATION 30 30 - - J801 18 ECCM9943000 DC-DC HEAT SINK CM9943 1 1 - - - H801 * 19 EECM9923000 INVERT SHIELD CM9923 1 1 - - - ZZZ 20 MAA70007209 SCREW M3X0.5+10P-NI & WASHER DIM - Acer AL922 | AL922 Monitor Service Guide - Page 76
NO. 455A78 REV. 0C C NO. PART NO. DESCRIPTION SPECIFICATION 30 30 001 021 REMARKS # 445A7830001 AIS AUDIO&D/D BD. 15 CC3301211T4 RESISTOR 16 CC5101211T2 RESISTOR 17 CC5102211T7 RESISTOR 18 CC9101211T0 RESISTOR 19 DA1M988P001 PCB 20 DC1510009T0 BEAD 21 XX0900T1180 JUMP WIRE 2SC945-P -